Hello, Reviewing for Game of Thrones. I wanted to say that this is well thought out. You describe the process of writing very well for someone your age. Considering the best way to learn how to write is to read first. I enjoyed the poem and the explanation was most helpful for those like me who know what an Acrostic is but maybe not Acrostic Poem. This was creative.
The word choice was good. I don't know if I would keep "Time travel..." in there. With time travel, you sort of sound like all stories are about that. Some are and if they are done correctly, they are really good books. You might look at "Traveling to new places" instead.
I have to agree, reading is good fun. I love the fact that you pointed out there are never ending possibilities.
The imagery you used was mature and you stayed with the theme of the poem well.
I don't believe there are grammatical errors and definitely no spelling errors.
All in all this is a good poem. You are becoming a good writer. Your mother is teaching you well.
Keep up the good work. Keep writing.